*1 Requires subscription to Caller ID service offered by your provider/ telephone company. *2 Requires number registration in the call block list. *3 Numberless calls cannot be blocked depending on the service of your provider/ telephone company. *4 Requires registration in the phonebook to display the name. *5 Requires subscription to both Caller ID and Call Waiting with Caller ID services offered by your provider/ telephone company. *6 The maximum receiver volume is around twice as loud as the standard Panasonic DECT telephones. *7 Actual battery performance depends on usage and ambient environment.